I think haircut is no issue, I visit the salon every month to do hair treatment, cut, wash and blow dry hair. π hairdye maybe not so safe in my opinion due to the harmful chemical that they use.
My gynae asked me to avoid it, even my eyelash extensions! But better to check with your gynae and see what is his/her advice, cuz mine is more on the "better be safe than sorry" side. π
Angel C.